First Lady Michelle Obama meets with Prime Minister David Cameron and his wife Samantha Cameron for tea at 10 Downing Street, London, England, June 16, 2015.


First Lady Michelle Obama meets with Prime Minister David Cameron and his wife Samantha Cameron for tea at 10 Downing Street, London, England, June 16, 2015.


First Lady Michelle Obama meets with Prince Harry for tea to discuss the "Let Girls Learn" initiative and support for veterans, at Kensington Palace in London, England, June 16, 2015.


First Lady Michelle Obama meets with Prince Harry for tea to discuss the "Let Girls Learn" initiative and support for veterans, at Kensington Palace in London, England, June 16, 2015.


President Barack Obama drops by Vice President Joe Biden’s meeting with Iraqi Kurdistan Region President Masoud Barzani in the Roosevelt Room of the White House, May 5, 2015.


President Barack Obama drops by Vice President Joe Biden's meeting with Iraqi Kurdistan Region  President Masoud Barzani in the Roosevelt Room of the White House, May 5, 2015.


President Barack Obama, First Lady Michelle Obama, and daughters Malia and Sasha pose for a family portrait with Bo and Sunny in the Rose Garden of the White House on Easter Sunday, April 5, 2015.


President Barack Obama, First Lady Michelle Obama, and daughters Malia and Sasha pose for a family portrait with Bo and Sunny in the Rose Garden of the White House on Easter Sunday, April 5, 2015.


President Barack Obama and First Lady Michelle Obama host a Passover Seder dinner in the Old Family Dining Room of the White House, April 3, 2015.


President Barack Obama and First Lady Michelle Obama host a Passover Seder dinner in the Old Family Dining Room of the White House, April 3, 2015.


President Barack Obama and Vice President Joe Biden, with members of the national security team, participate in a secure video teleconference from the Situation Room of the White House with Secretary of State John Kerry, Secretary of Energy Ernest Moniz and the U.S. negotiating team in Lausanne, Switzerland, to discuss the P5+1 negotiations with Iran, March 31, 2015.


President Barack Obama and Vice President Joe Biden, with members of the national security team, participate in a secure video teleconference from the Situation Room of the White House with Secretary of State John Kerry, Secretary of Energy Ernest Moniz and the U.S. negotiating team in Lausanne, Switzerland, to discuss the P5+1 negotiations with Iran, March 31, 2015.


President Barack Obama talks on the phone in the Oval Office with Major General Joe Osterman, Commander of Marine Special Operations Command, about the UH-60 Black Hawk helicopter that apparently crashed in waters off Florida during a routine night training mission, March 10, 2015.


President Barack Obama talks on the phone in the Oval Office with Major General Joe Osterman, Commander of Marine Special Operations Command, about the UH-60 Black Hawk helicopter that apparently crashed in waters off Florida during a routine night training mission, March 10, 2015.


First Lady Michelle Obama greets recipients of the State Department 2015 International Women of Courage Award recipients in the Diplomatic Reception Room of the White House March 7, 2015. From left: Nadia Sharmeen, Bangladesh; Arbana Xharra, Kosovo; May Sabe Phyu, Burma; Marie Claire Tchecola, Guinea; Tabassum Adnan, Pakistan; Sayaka Osakabe, Japan; Rosa Julieta Montano Salvatierra, Bolivia; Captain Niloofar Rahmani; Afghanistan; Majd Chourbaji, Syria.


First Lady Michelle Obama greets recipients of the State Department 2015 International Women of Courage Award recipients in the Diplomatic Reception Room of the White House March 7, 2015. From left: Nadia Sharmeen, Bangladesh; Arbana Xharra, Kosovo; May Sabe Phyu, Burma; Marie Claire Tchecola, Guinea; Tabassum Adnan, Pakistan; Sayaka Osakabe, Japan; Rosa Julieta Montano Salvatierra, Bolivia; Captain Niloofar Rahmani; Afghanistan; Majd Chourbaji, Syria.


President Barack Obama participates in a secure video teleconference with European leaders to discuss Ukraine and global security issues, in the Situation Room of the White House, March 3, 2015. Participants include Prime Minister David Cameron of the United Kingdom, President François Hollande of France, Chancellor Angela Merkel of Germany, Prime Minister Matteo Renzi of Italy and European Council President Donald Tusk.


President Barack Obama participates in a secure video teleconference with European leaders to discuss Ukraine and global security issues, in the Situation Room of the White House, March 3, 2015. Participants include Prime Minister David Cameron of the United Kingdom, President François Hollande of France, Chancellor Angela Merkel of Germany, Prime Minister Matteo Renzi of Italy and European Council President Donald Tusk.


First Lady Michelle Obama hosts a tea with Mrs. Rula Ghani, First Lady of Afghanistan, in the Yellow Oval Room of the White House, Feb. 23, 2015.


First Lady Michelle Obama hosts a tea with Mrs. Rula Ghani, First Lady of Afghanistan, in the Yellow Oval Room of the White House, Feb. 23, 2015.